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Electromagnetic Alarms Franklin MA

Local resource for Electromagnetic Alarms in Franklin. Includes detailed information on local businesses that provide access to Electromagnetic Alarms, keyless entry, garage door opener, driveway alarm, as well as advice and content on electromagnetic and electronic alarm system retailers and stores in your location.

Alarm Tech Incorporated
(508) 699-3637
244 West St
North Attleboro, MA
All Points Systems
(781) 501-2588
725 Canton St
Norwood, MA
Universal Battery Distributors Inc.
(401) 692-5069
Lincoln RI
Lincoln, RI
Blue Ridge Security Services
(781) 769-2730
601 Washington St
Norwood, MA
Ace Locksmith & Security Systems
(781) 762-4874
1159 Washington St
Norwood, MA
Cgl Electronic Securities Incorporated
(781) 769-8600
1400 Boston Providence Tpke Ste 2200
Norwood, MA
Adt Secruity Services
(781) 278-1001
111 Morse St Ste 1
Norwood, MA
Osprey Wireless
(781) 551-9700
895 Boston Providence Tpke
Norwood, MA
(781) 440-0707
151 Carnegie Row
Norwood, MA
Eagle Alarm Systems,Inc.
(401) 334-3000
20 Hines Farm Drive
Cumberland, RI
Security/Fire Alarm systems

Electromagnetic Detection

Most intrusion detection systems in use today utilize some form of electrical circuit running through wires, mechanisms, metalized tape or foil. If any part of the electric circuit running through two pieces of metal in the door locks or window lock mechanisms , or if a strip of metallic tape on the window glass is broken, it trips an alarm.

Circuits work well when an intruder attempts entry as one would expect, by opening a door or window. Burglars however, know how to use crowbars and other burglary tools to get through doors without disrupting these electrical circuits. In warm climate regions, houses may have thin walls, and entry can be gained by cutting through a wall. Tape or wire mesh in the wall would have to be torn or cut through to gain entry, thus tripping the security alarms .

Limitations occur in a circuit system because the gap or break can be bridged when the burglar breaks the tape or magnetic connection with a long wire or piece of metalized tape, prying open a door or window frame without setting off the alarm.

Magnetic Contact Circuits

Electromagnetic systems are often used on doors to apartment buildings and secure areas in government offices. They use a magnet in one sealed enclosure and a switch in another sealed enclosure and when the magnetic contact is broken, the alarm signal sounds.

In order to open a door protected with a magnetic door latch, a button has to be pushed by an attendant to allow the door to be opened by the visitor...

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